<template>
    <div class="app-container" >
      <el-form label-width="340px"  padding:3px>
        <el-form-item  label="信息描述" text-align:center>
          <el-tag type="info" >excel模版说明</el-tag>
          <el-tag>
            <i class="el-icon-download"/>
            <a :href="'/tikutimu.xlsx'">点击下载模版</a>
          </el-tag>
  
        </el-form-item>
  
        <el-form-item label="选择Excel">
        
          <el-upload
            ref="upload"
            :auto-upload="false"
            :on-success="fileUploadSuccess"
            :on-error="fileUploadError"
            :disabled="importBtnDisabled"
            :limit="1"
            :on-preview="uploadPreview"
            :on-remove="handleAnswerRemove"
            :headers="headers"
            :before-upload="beforeAvatarUpload"
            :action="'http://43.143.239.97:8082/common/uploadone'"
            name="file"
            accept="application/vnd.ms-excel">
            <el-button slot="trigger" size="small" type="primary" plain>选取文件</el-button>
            <el-button
              :loading="loading"
              style="margin-left: 10px;"
              size="small"
              type="success" plain
              @click="submitUpload">上传到服务器</el-button>
          </el-upload>
        </el-form-item>
      </el-form>
    </div>
  </template>
  <script>
  export default {
      data() {
          return {
              BASE_API: process.env.VUE_APP_API_BASE_UR, // 接口API地址
              env : process.env.NODE_ENV, 
              importBtnDisabled: false, // 按钮是否禁用,
              loading: false,
          }
      },
      created() {
        this.BASE_API = process.env.VUE_APP_API_BASE_URL;
  
        console.log("process.env:",process.env.VUE_APP_API_BASE_URL);
  
      },
      methods:{
          //点击按钮上传文件到接口里面
          submitUpload() {
            //todo 这里要加上传文件判断逻辑
           
              this.importBtnDisabled = true
              this.loading = true
              // 相当于 js: document.getElementById("upload").submit() 表单提交
              this.$refs.upload.submit()
            
          },
          //上传成功
          fileUploadSuccess(response) {
              //提示信息
              this.loading = false
             
              this.$message({
                  type: 'success',
                  message: '批量添加试题成功'
              })
              //跳转驾考分类列表
              //路由跳转
              this.$router.push({path:'/questionManage'})
          },
          //上传失败
          fileUploadError() {
              this.loading = false
              this.$message({
                  type: 'error',
                  message: '添加试题失败'
              })
          }
      }
  }
  </script>
